LENMAR CBZ324V Replacement Battery for V-Tech DS6421 Cordless Fits: VTech DS6401, DS6421, DS6422, DS6472, LS6405, LS6425, LS6475 Series Replaces: VTech BT183482, BT283482 2.4V / 500mAh Nickel-Metal Hydride 1 Year Warranty